Improvement in wrench



' iiltitrd 5mm-f @met @with Letters Patent N. 91,838, dated une 29, 1869.

IMIEROVIEllVIIElNT IN WRENCH.

The Schedule referred to :in these` Letters Patent and making part of the same.

To all whom 'it may concern Be it known that I, THOMAS GARRICK, of Providence, in the county of Providence, and State of Rhode Island, have invented an Improved Wrench; and do hereby `declare that the following is a full ,and exact description, reference being had to the accompanying drawings, making a part of this specification.

, The nature of my invention consists in a wrench, furnished with a selfadjusting jaw, whereby it is made to ft tapering or angular surfaces; Y

To enable those skilled in the art to make and use my invention, I'will proceed to describe its construction and opera-tion.

Figure l represents a side view, and

Figure 2, an edge view.

The movable jaw A turns upon the piu l), as a centre, against a curved recess or socket, c.

'lhe pin d, moving in the curved slot e, holds the jaw A from moving laterally out of the socket c.

The flange f, upon the back part of the jaw A, en-

ters a curved groove in the socket, by means of which the jaw A is steadied, and prevented from cramping.

If this fiange is made dovetailing, entering a corresponding groove in the socket, the pin b may be dispensed with.

Y Any other suitable mode of fastening the self-adj usting jaw A to its socket may be adopted, and either or both jaws of a wrench may in like manner be made self-adjusting. By means of' this free adjustment of the jaws, they may be caused to fit and take hold of any. angular or inclined surfaces.

What I claim as my invention, and desire to secure by Letters Patient, is

A swivel, or self-adjusting jaw, operating laterally in a curved. socket, substantially as described.

THOMAS GARRIGK.

Witnesses:

S. SCHOLFIELD, L. SGHOLFIELD. 

